The Quality of American Manufacturing Since 1962

Commitment to Quality

Whether you are an extrusion tooling customer or a defense customer, our Rhode Island manufacturing facility operates under the quality standards required by government contracts. Everything is manufactured in the USA using lean principles, and the highest quality in an ISO 9001:2015 facility.

State of the Art

We continue to invest in the latest, state of the art, machine tools using the most advanced computerized controls and operated by experienced technicians. Guill endeavors to be the most cost efficient manufacturer while adhering to a “Continuous Improvement” Quality principle.

Quality Policy

Guill Tool & Engineering Co., Inc. is committed to meeting the needs of our customers and to continuously improve our processes. Requirements of ISO 9001:2015 and AS9100:2016 are communicated and maintained at all levels of the company through training, internal audits and internal communication. Each person in the company is dedicated to delivering quality products and service to our customers.

Compliance & Certifications

  • Small Business
  • AS9100:2016 Certified by NQA
  • ISO 9001:2015 Certified by NQA
  • ITAR Registered
  • JCP Certified
  • EB-2678 Approved Level I Supplier (EB and NNS)
  • MIL-I-452028A
  • MIL-STD-45662A
  • DFARS Compliant
  • NIST SP800-171 Compliant
  • Conflict Free Mineral Procurement
  • Mercury Free, REACH, RoHS Compliant Facility

Inspection Equipment

Hexagon One CMM
Axis Capacity
x= 25”, y= 36”, z=20”

Nikon MM-40 Measuring Microscope

Brown & Sharp Hite-Tronic
Height Gauge – 36″ Height Capacity


Brown & Sharp Validator
18″ x 32″ x 32″ Axis Capacity

Taylor Hobson Profilometer Surtronic 3
Surface Finish Gauge


Rockwell Hardness Tester

Granite Surface Plates

Optical Comparitors

Electronic Height Gages

American Manufactured in Rhode Island

Since 1962, we have been manufacturing quality machined parts and tooling in Rhode Island. We believe in American manufacturing and are proud to be a thriving part of the manufacturing industry by adhering to the highest quality standards and supporting our local economy.

Extrusion Expertise Is Here For You

Contact Us:

Guill Tool & Engineering Co., Inc.

10 Pike Street

West Warwick, RI 02893

Phone: 401.828.7600

Fax: 401.823.5310

Email: websales@guill.com



7:30 am – 4:30 pm